I have a layer diagram, however anything I add to the layers has the "Supports Validation" property set to false and I can't change it. I have tried adding assemblies, namespaces and classes to layers with no effect.
I also tried adding my projects as layer references and I have updated VS2013 to service pack 4 in the hope it was just a bug that was solved in the meantime. All this to no avail.
So what do I need to do to get my diagram to validate all the parts? What am I missing?
I found the issue. VS-2013 layerdiagram project expect the framework 4.5 or small. for you layer project if framework is higher than 4.5 then please make it 4.5 it will work.